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Research Article CODEN: IJPNL6
PATTERN OF DRUG PRESCRIBING DURING PREGNANCY IN NEPALESE
WOMEN
Priyanka Shrestha* and Shiva Kumar Bhandari
Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road, Dhanmondi,
Dhaka - 1205
*Corresponding author e-mail: [email protected], [email protected]
ABSTRACT
Objective of this study is to assess the utilization pattern and the teratogenesity risk of the drugs prescribed among
pregnant women in Nepal. The drugs that were prescribed during pregnancy were assessed retrospectively in 94
Nepalese pregnant women who attended the prenatal clinic of the two Hospitals in Nepal. From Patient medical
record, FDA drug category of prescribed drugs was identified. Maximum number of pregnant women was from age
grouping 15 to 25 (72%). According to FDA drug category, our finding reveals that two drugs prescribed of FDA
category X were oxytocin and dydrogesterone. A majority of drugs prescribed were from category B (42%). A
majority of drugs were given as an oral dosage form i.e. Tablet form (56%) and in severe cases injection was
preferred i.e. 24%. Anthelminthic was prescribed to all pregnant women during their second trimester. The most
commonly prescribed drugs were nutritional supplements like Iron, Folate, Calcium, Vitamins followed by Tetanus
Toxoid.
Key words: prescribing pattern, pregnancy, drug use, Nepalese women
INTRODUCTION
The presence of antigen (hCG) in the urine or serum
with antibody either polyclonal or monoclonal
available commercially by 8-11 days after conception
ensures pregnancy. Pregnancy is a time of profound
physiological changes in a woman's body. These
unique changes challenge clinicians managing
disease states during pregnancy in the selection of
medications best suited to treat their patients. [1]
Altered physiology during pregnancy demands
special care in the use of drugs. [2]
Immense
precautions need to be taken for the use of drugs
during pregnancy as in addition to health of the
mother and health of the fetus too may be affected. [3]
No doubt drug treatment may be beneficial to the
mother in some circumstances but the same agents
may be hazardous to the unborn. Selection of drugs
best suited to be administered to a pregnant woman is
a challenging task to the doctors in view of the
unique physiological changes. [4]
Though teratogenic
risk is a biggest risk in the use of many drugs, it is
unrealistic to recommend, not using any drugs at all
during pregnancy. This decision may even prove
dangerous for the health of the mother. [5]
Risk
benefits situation need to be carefully analyzed by the
physicians in managing medical conditions in a
pregnant women. [6]
Despite the absence of adequate
studies on the safety and effectiveness of prescription
drugs for pregnant women, evidence available shows
that physicians prescribe, and pregnant women take a
surprisingly large number of drugs. [7]
Pregnancy duration: The Pregnancy is measured in
trimesters from the first day of your last menstrual
period, totaling 40 weeks. Each pregnancy stage, also
known as a trimester, holds unique and different
growth, developments, emotions and feelings
1. First trimester
2. Second trimester
3. Third trimester
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The first trimester consists of the first 1-12 weeks of
pregnancy. Morning sickness is inconsistently
present in about 50% cases, more often in the first
pregnancy than in the subsequent one. It usually
appears soon following the missed period and rarely
lasts beyond the first trimester. Its intensity varies
from nausea on rising from the bed to loss of appetite
or even vomiting. But it usually does not affect health
status of the mother... Breast discomfort in the form
of feeling of fullness and ‘pricking sensation’ is
evident as early as 6-8th
week specially
primigravidae. Fatigue is also a frequent symptom
which may occur early in pregnancy. This is a time
when baby does the most of its developing, and is
also the time where fetus stands the biggest chance of
developing any complications. Second trimester
consists of 13-28 weeks. Feeling of life or active fetal
movement is felt by the women about 18th
week.
Progressive enlargement of the lower abdomen is
seen by the growing uterus. Breasts are more
enlarged with prominent veins under the skin. Third
trimester or the last trimester consists of 29-40th
weeks after the 2nd
trimester. Enlargement of the
abdomen is clearly visualized. Fetal movement is felt
more intensively [8]
.
FDA categories for drug use in Pregnancy: In
1979, the Food and Drug Administration developed a
system determining the teratogenic risk of drugs by
considering the quality of data from animal and
human studies. It provides therapeutic guidance for
the clinician. Category A is considered the safest
category but some drugs from categories B, C and D
are also used during pregnancy. Category X is the
only rating that denotes a drug is absolutely
contraindicated for use during pregnancy. Some of
the drugs have been proved to be harmful to the fetus
and so their use during pregnancy is contraindicated. [9]
METHODOLOGY
This retrospective study was carried among pregnant
women in two Hospitals Koshi Zonal Hospital
(Morang district) and Dhulikhel Hospital (Kavre
District ). Different Stages of pregnant women
including First trimester, Second trimester and last
i.e. Third trimester were interviewd individually.
Each woman was interviewed only once, regarding
drugs used in their present pregnancy since
conception to study drug utilization practices during
pregnancy, in women attending the ante-natal clinics.
A set of in-depth format was developed for
investigation of drug prescribing pattern during
pregnancy in these two hospitals, for both
quantitative and qualitative data and information. The
questionnaire is both open- and close-ended. The
study is based on six months from Sep 2012 to Feb
2013 of wide study of drug utilization pattern. The
data entry was started immediately after the
completion of data collection. The collected data was
checked, verified and then entered into the data sheet.
Data was analyzed manually. The test statistics used
to analyze the data will be descriptive statistics.
RESULT AND DISCUSSION
The study was carried out among different age group
of woman and the maximum age group was 15-
25(i.e. 72%) and others were 26-35 (i.e. 26%) and 35
above (i.e. 2%) as shown in figure 1. The maximum
numbers of pregnant women were in third trimester
i.e. 52 % and others were in first and second trimester
i.e. 5 % and 43% respectively as shown in Table 2
and Figure 2. Among the 50 drugs prescribed during
ANC, most of them (56%) were prescribed in tablet
form. The rest were injection (24%), capsule (8%),
syrup (8%) and cream (4%) as shown in table 3 and
figure 3. Different drug category assigned by FDA
which has been used during pregnancy is shown in
table 1.
The frequently prescribed drugs was from
FDA category B (42%) and rest were C
(30%), A (14%), D (4%), X (4%) and not
categorized (4%) shown in table 4 and
figure 4. But the FDA category varies
according to the dose use and in which
trimester the drug is being used.
Around 61% women were hospitalized during their
pregnancy and rest 39% were not hospitalized during
their pregnancy stage out of 94 pregnant women.
Reasons for hospitalization are: 1. Hyperemesis Gravidarum
2. Pre-eclampsia
3. High fever, severe cough and cold
4. Vaginal bleeding
5. Urinary tract infection
6. Back ache, abnormal position of
fetus and abdomen pain
7. Severe nausea and vomiting
8. Sweating and drowsiness
9. Vaginal discharge
List of medical test administered during
pregnancy
1. Urine test
Color, reaction, albumin, sugar, acetone
2. Blood test
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White blood test, platelets, hemoglobin,
Blood group, Rh, H.I.V. Antibody I & II, Hbs
Ag, V.D.R.L.
3. Microscopic examination
R.B.C, Casts, epithelial test
4. Stool test
5. Ultrasonography i.e. video-X ray.
6. Blood pressure
7. Glucose level.
8. CTG ( Cardiotocography)
Drugs prescribed for pregnant women during
their ANC follow: (Table: 5)
Category D and category X drugs prescribed and
their indication: (Table: 6)
The most frequently prescribed drugs in each
trimester were: antibiotics, anti emetics, vitamins,
proton pump inhibitors /histamine H2 blockers
during 1st trimester; antibiotics, cotrimoxazole, iron
folate (Fe Fol), antacids and anti emetics during 2nd
trimester; antibiotics, iron folate, antacids and anti D
during 3rd trimester.
DISCUSSION
The information was collected from the pregnant
women who have visited or admitted to the two
hospitals. 94 women were interviewed. The study
was carried out to describe the pattern of drug
prescribing by the physicians during pregnancy in
Nepal. But the prescribing pattern may vary
according to geographical change and change in
season. Because women from different geographical
reason has different physical state and also change in
season affects lot in prescribing pattern of drug by the
physicians to the pregnant women. Pregnant women
may easily get affected from various diseases during
winter and rainy season and need more drug but it
may not be same in the summer season. And also,
rational drug use in pregnancy requires the balancing
of benefits and potential risks associated with the use
of the drug. The results of the present study show
that maximum number of pregnant women was from
age group 15 to 25 i.e. 72% .The maximum number
of drugs was given as an oral dosage form (tablet) i.e.
56% and in severe cases injection was given. From
this study it is also found that the physician
prescribed the safe drug FDA category B in highest
number i.e.42 % and rest were category C, A, D and
X . Among the total drugs prescribed during ANC,
2% were category D, namely Povidone–Iodine and
Phenobarbital, 2% were category X namely
dydrogesterone and oxytocin, 2% were not
categorized (Table 3.6 and 3.7). From this we come
to know that the drug used in maximum were safe
drugs i.e. category B. FDA categorized this drug after
animal reproduction studies which has failed to
demonstrate a risk to the fetus but there are no
adequate and well-controlled studies in pregnant
women. Category A drugs prescribed in this study
were only 7 out of 50 drug prescribed. Majority of
the pregnant women were admitted for the hyper
emesis gravid arum (HG) and Urinary tract infection
in which they took different parenteral drugs such as
anti emetics, anti pain, IV fluids, antibiotics and
others per drug encounter and other reasons were pre-
eclampsia, vaginal discharge, high fever, abdomen
pain etc., Globally pregnant women and young
children are at high risk of anemia with iron
deficiency contributing to 50% of this. WHO has
estimated that prevalence of anemia during
pregnancy in developed countries is 14% and
developing countries 51 percent. [10]
More than half
of pregnant women in developing countries suffer
from iron deficiency anemia. As Nepal is one of the
developing countries, result of our study implies that
hospitals in Nepal supply iron supplement from the
1st trimester to prevent prevalence of anemia during
pregnancy. And it is mandatory to consider iron
supplement during pregnancy so as to minimize the
risks associated with anemia. And also some
pregnant women who were admitted to OBS ward
give birth without taking any medication.
CONCLUSION
The study was carried out to describe the pattern of
drug prescribing by the physicians during pregnancy
in Nepal. But the prescribing pattern may vary
according to geographical change and change in
season. Because women from different geographical
reason has different physical state and also change in
season affects lot in prescribing pattern of drug by the
physicians to the pregnant women. Pregnant women
may easily get affected from various diseases during
winter and rainy season and need more drug but it
may not be same in the summer season. And also,
rational drug use in pregnancy requires the balancing
of benefits and potential risks associated with the use
of the drug. Prescription to pregnant women should
be easy known by the pharmacist either by direct
communication with the health care provider working
in GYN/OBS ward and OPD.
ACKNOWLEDGEMENT
We would like to thank Dr Dipak Shrestha, Assistant
professor Dhulikhel Teaching Hospital for all the
cooperation and support provided.
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Figure: 1 Age distribution of pregnant women
Figure: 2 Duration of pregnancy
Figure: 3 Dosage Form of drugs prescribed to pregnant women
Figure: 4 Different FDA categorized drugs used by pregnant women
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Figure: 5 Showing Kavre and Morang district (study area) of Nepal.
Table: 1 FDA categories for drug use in pregnancy
Category Description
A Adequate, well-controlled studies in pregnant women have not shown an increased risk of fetal abnormalities
B Animal studies have revealed no evidence of harm to the fetus; however, there are no adequate and well controlled studies in pregnant women. Or Animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant
women have failed to demonstrate a risk to the fetus
C Animal studies have shown an adverse effect and there are no adequate and well-controlled studies in pregnant women. Or No
animal studies have been conducted and there are no adequate and well-controlled studies in pregnant women.
D Studies, adequate well-controlled or observational, in pregnant women have demonstrated a risk to the fetus. However, the benefits of therapy may outweigh the potential risk.
X Studies, adequate well-controlled or observational, in animals or pregnant women have demonstrated positive evidence of fetal abnormalities. The use of the product is contraindicated in women who are or may become pregnant.
Table 2: Pregnancy duration
Pregnancy duration Number Percentage
1st trimester 5 5%
2 nd trimester 40 43%
3 rd trimester 49 52%
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Table 3: Dosage form of drugs prescribed to pregnant women
Dosage form Number Percentage
Injection 13 24%
Tablet 30 56%
Capsule 4 8%
Syrup 4 8%
Cream 2 4%
Table: 4 Table showing different drug category assigned by FDA which have been used during pregnancy
FDA category Number Percentage
A 7 14%
B 21 42%
B/C 1 2%
C 15 30%
D 2 4%
X 2 4%
Not categorized 2 4%
Table: 5 Drugs prescribed for pregnant women during their ANC follow up
FDA category Generic name Trade name Dosage form Use
B Ranitidine Aciloc Tablet Gastritis
B Ampicillin Tablet Antibiotic
C Hyoscine Butylbromide 10mg Busecopan Tablet Abdomen ache
B /C Iron Afee capsule Iron
B Amoxicillin capsule Antibiotic, Urinary tract infection, Throat/Posterior
pharyngeal wall congested
B Albendazole Tablet Roundworm. Anthelmintic
C Fexofenadine hydrochloride Allegra-180 Tablet Allergy
D Povidone-Iodine Betadine Gargle LIquid Tosilitis, Throat/Posterior pharyngeal wall congested, Oral germicide for fast and soothing
relief of sore throat and mouth sores.
C Clotrimazole Vaginal
Mucoadhesive
Candid V6 Tablet Vaginal candidiasis, antifungal
B Cefixim Tablet, Injection Antibiotic
B Cefadroxil Odoxi 500mg Tablet, IV Antibiotic
B Clotrimazole Cream Antifungal
C Decadron
Dexona 0.5 mg Tablet Hormone system disorders, allergies and arthritis
A Calcium with vitamin D3 Decal Tablet Used as calcium with vitamin D3
B Drotaverine Drotin DS-80 Tablet Abdomen ache. Antispasmodic
A Dextrose Dextrose IV To maintain body fluid
A Folic acid Foliden Tablet Folic acid, fetus development
Not categorized Iron/vitamin
C/vitaminB12/Folic Acid
Ferric Plus Tablet, capsule To prevent anemia
X Dydrogesteron Gestofit 200mg Tablet To treat hormone deficiency during pregnancy and to treat secondary amenorrhea, manage luteal phase
deficiency, prevent endometrialhyperplasia,
amelioratemdysfunctional uterine bleeding, and treat endometriosis.
B Ondansetron Grandem Tablet Treat nausea and vomiting A vitamins G vital Syrup Dietary supplement
C Gentamycin Injection Antibiotic, bactericidal
C Hydralazine Tablet To treat high blood pressure, preeclampsia
B Hydroxy Progesteron
Injection Injection Reducing the risk of delivering a baby too early
(preterm birth)
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C Isoxsuprine Hcl Isox 10mg Tablet To prevent premature labor.
B Ibuprofen Tablet Pain killer, abdomen ache
C Saline Normal saline Saline Electrolyte balance
A Vitamin B-complex with
essential amino acid
Nebla Syrup Vitamins
B Pyrantel Pamoate Nemocid 250 mg Tablet Treat parasitic infections and worm infections
A Magnesium sulphate Intravenous Used to delay preterm labor, hypomagnesemic ,
seizures, Prevention or control of seizures in eclampsia
C Calcium Ossad 500mg Tablet Fetus bone development
X Oxytocin Intravenous
infusion, Intramuscular
injection
Increase uterus contraction
B Ondansetron Ondem 4 mg Tablet Treat nausea and vomiting
B Metoclopramide PerinoRMR Tablet Antiemetic
B Acetaminophen Paracetamol Tablet, IV Antipyretic, pain reliever
C Promethazine Phenergen 25 mg Tablet Abdomen ache
A Multi-Vitamins+Minerals Polybion syrup Nutrition
D Phenobarbital Phenobarbitone Tablet Helps reduce seizure frequency and severity and in a lot of cases stops seizures altogether.
B Ritodrine HCl Ritodrine IV Delay uterus contraction, to stop premature labor
B Rabeprazole sodium IP RAB-20 Tablet Gastritis
C Sodium Chloride IP Rhine Normal saline Maintains electrolyte balance
C Chlorpheniramine-
Acetaminophen/ Paracetamol-
Phenylephrine
Suprin Tablet Cough, cold, fever
B Tranexamic Acid Tablet Transtat Tablet 500mg Stop PV bleeding
C Benzydamine hydrochloride Tantrum gargle Liquid Mouthwash, antibacterial
B Cefotaxime Taxim Injection Antibiotic
C Chlorpheniramine Maleate TusQD syrup Used to treat dry cough
B Ceftriaxone Taxone-P Tablet Antibiotic
C Tetanus Toxoid Tetanus vaccine Injection To prevent tetanus of mother as well as her baby.
Not categorized Folic Acid, Iron (III) Hydroxide Polymaltose
Tisfer Capsule Nutrition, dietary supplements
B Helminthic Warmin Tablet Anthelminthic
*B/C safety differs according to the trimester they are given.
Table: 6 List of Category D and Category X drugs prescribed and their indication
Drug FDA
category
Adverse effect Indication
Povidone -Iodine
D Irritation of the lining of the mouth and throat Tosilitis, Throat/Posterior pharyngeal
wall congested
Phenobarbital D Mother-Dizziness, drosiness,excitation,
headache, tiredness, loss of appetite, nausea, vomiting
Fetus- Addiction or withdrawal symptoms in
a newborn
Helps reduce seizure frequency and
severity and in a lot of cases stops seizures altogether
Fexofenadine hydrochloride
C Headache, drowsiness, dizziness and nausea. Allergy
Chlorpheniramine-
Acetaminophen/Paracetamol-Phenyleohrine
C nausea, drowsiness, dry mouth, rashes Cough, cold, fever
Hyoscine Butylbromide C Dryness of the mouth, Rash, itching,
increases heart rate, Producing less sweat than normal
Abdomen ache
Clotrimazole vaginal Mucoadhesive C Vaginal irritation, burning/stinging, and
itching
Vaginal candidiasis, antifungal
Decandron
C Difficulty sleeping, increased appetite
,feeling of a whirling motion ,increased sweating, mood changes, indigestion
,nervousness, appetite loss, tarry or black
stools, convulsions, dizziness
Hormone system disorders, allergies and
arthritis
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Gentamycin C Nausea, vomiting, stomach upset, or loss of
appetite, Pain/irritation/redness
Antibiotic, bactericidal
Hydralazine C Headache, pounding/fast heartbeat, loss of appetite, nausea, vomiting, diarrhea, or
dizziness
To treat high blood pressure, preeclampsia
Isoxsuprine Hydrochloride C Dizziness, low blood pressure, palpitations, fast heart rate, lung swelling, nausea,
vomiting and abdominal distress Rash and
allergic reactions
To prevent premature labor.
Sodium chloride C Febrile response, infection at the site of injection, venous thrombosis or phlebitis
extending from the site of injection,
extravasation and hypervolemia
Maintains electrolyte balance
Calcium C Constipation and upset stomach may occur Fetus bone development
Promethazine C Drowsines,Sedation, somnolence, blurred
vision, dizziness;confusion, disorientation ,
Abdomen ache
Benzydamine hydrochloride C Burning, stinging or numbness in the mouth
or throat. Throat irritation, cough, dry mouth
with thirst, and headache
Mouthwash, Antibacterial
Chlorpheniramine Maleate C Seizures, in a newborn baby if used in the
final of 3 months of pregnancy
Used to treat dry cough
Tetanus Toxoid C Mild fever, joint pain, muscle aches, nausea, tiredness, or pain/itching/swelling/redness at
the injection site may occur
To prevent tetanus of mother as well as her baby.
Oxytocin X Allergic reaction, difficulty urinating, confusion, loss of appetite, nausea or
vomiting.
Increase uterus contraction
Dydrogesterone X Dizziness, nausea, headache, fatigue,
emotional lability, irritability; abdominal pain, musculoskeletal pain.
Fetus- may cause fetal death
To treat hormone deficiency during
pregnancy
Table: 7 Drug lists of different types used by pregnant women with their common and serious side effects if taken more
Drugs Adverse effect
1. Amoxicillin Confusion, convulsions, diarrhea, dizziness, insomnia, nausea, rash, vomiting.
2. Albendazole Stomach pain, nausea, vomiting, headache, dizziness or temporary hair loss
3. Ampicillin Irritation of the mouth or throat, diarrhea, nausea, vomiting, stomach pain/cramps or vaginal irritation or discharge
4. Acetaminophen Skin rashes or hives, weakness, tiredness, sores
5. Benzydamine hydrochloride Drowsiness, dryness of the mouth with thirst, headache , local burning or stinging
sensation, local numbness
6. ClotrimazoleVaginal Mucoadhesive Vaginal irritation, burning/stinging, and itching
7. Cefixim Diarrhea, loose or frequent stools, abdominal pain, nausea, stomach upset and
flatulence, vaginal inflammation/fungal infection and skin disorders.
8. Cefadrail Allergic reactions including rashes, itching (pruritus), hives (urticaria), serum sickness-
like reactions with rashes, fever and diarrhoea
9. Clotrimazole cream Mild burning or irritation (immediately on use) , rash, itchiness
10. Chlorpheniramine-Acetaminophen/Paracetamol-
Phenylephrine
Nausea, drowsiness, dry mouth.
11. Cefotaxime Skin rash, bruising, severe tingling, numbness, pain, muscle weakness
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12. Chlorpheniramine Maleate Drowsiness, dizziness, headache, constipation, stomach upset, blurred vision,
decreased coordination, or dry mouth/nose/throat
13. Ceftriaxone Dizziness, headache, mild diarrhea
14. Decadron Headache, dizziness, weakness, confusion, insomnia, anxiety.
15. Drotaverine Headache, dizziness, nausea, constipation, hypertension.
16. Gentamycin Allergic reactions, such as rash, convulsion, Inflammation of the lining of any part of
the mouth, such as cheeks, gums, tongue, throat and lips
17. Fexofenadine hydrochloride Headache, drowsiness, dizziness and nausea.
18. Hydroxy Progesteron
Blood clots, allergic reactions, fluid retention, hypertension, migraine, depression, and jaundice.
19. Hyoscine Butylbromide Dryness of the mouth, Rash, itching, increases heart rate, Producing less sweat than normal.
20. Isoxsuprine Hcl Severe allergic reactions (rash, hives, difficulty breathing, tightness in the chest, swelling of the mouth, face, lips, or tongue), chest pain, fast or irregular heartbeat,
severe or persistent dizziness.
21. Magnesium sulphate IV Flushing, sweating, muscle weakness, dizziness, drowsiness, muscle weakness, slowed/shallow breathing or other breathing trouble.
22. Metoclopramide Restlessness, drowsiness, dizziness, fatigue, constipation and focal dystonia.
23. Oxytocin Nausea, vomiting, cramping, stomach pain, irregular heart beat of mother, headache, rash.
24. Ondansetron Headache, lightheadedness, dizziness, drowsiness, tiredness, or constipation, rash, itches.
25. Promethazine Drowsiness, dizziness, constipation, blurred vision, or dry mouth.
26. Phenobarbital Dizziness, drowsiness, excitation, headache, tiredness, loss of appetite, nausea, or vomiting.
27. Rabeprazole sodium IP Headache, diarrhoea, nausea, abdominal pain, rhinitis, vomiting, constipation, cough.
28. Povidone-Iodine Local irritation and skin sensitivity, Increased sodium in the blood (hypernatraemia), Increased acid levels in the blood (metabolic acidosis).
29. Ritodrine HCl Increase in heart rate, rise in systolic pressure, decrease in diastolic pressure, chest pain and arrhythmia.
30. Tranexamic Acid Tablet Back pain, headache, joint pain, muscle pain, spasms, or cramps, nasal or sinus
congestion, stomach pain, tiredness.
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